Perhaps you should try some spelling variations:
"developer perception using java programing" » "developer perceptions using java programing" (Expand search), "developers perceptions using java programing" (Expand search), "development perception using java programing" (Expand search), "developer perception during java programing" (Expand search), "developer perception among java programing" (Expand search), "developer perception and java programing" (Expand search), "developer perception using java programming" (Expand search), "developer perception using java programs" (Expand search), "developer perception using meta programming" (Expand search)
"using coding python python programming" » "using codigo python python programming" (Expand search), "using codigos python python programming" (Expand search), "using using python python programming" (Expand search), "using coding pythons python programming" (Expand search), "using coding piton python programming" (Expand search), "using coding pitons python programming" (Expand search), "using coping python python programming" (Expand search), "using coating python python programming" (Expand search), "using cooking python python programming" (Expand search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("developer perception using java programing") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"developer perception using java programing\") OR (\"using coding python python programming\"))*".
• Removing quotes may allow a broader search: (( developer perception using java programing ) OR ( using coding python python programming ))*.